Zdzislaw szpor



(No Model.)

Z. SZPOR. FIRE ESCAPE.

No 583,776. Patented Jun 1, 1897.

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easily handled.

UNITED STATES P TENT FFICE.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Application filed February 4,1897.

To all whom it may concern:

Be it known that I, ZDZISLAW SzPoR, a subject of the Emperor ofAustria,residingin Krakau, Galicia, Austria-Hungary, have inventedcertain new and useful Improvements in Fire- Escapes; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

The object of this invention is to provide a portable fire-escape ofsimple, strong, and durable construction, reliable in operation, and

The invention consists in the improved fireescape and in the combinationand arrangement of the various parts thereof, substantially as will behereinafter more fully described, and finally embodied in the clauses ofthe claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts in each of the several views,Figure 1 is a side elevation of my improved fire-escape in normalposition; Fig. 2, a View similar to Fig. 1 with certain portions brokenaway and illustrating the various parts in operative position; and Fig.3, a detail sectional View on the line X X of Fig. 1, looking in thedirection of arrow B.

In said drawings, A represents a frame consisting of two parallel sideplates held together by the pins or and a arranged at or near the lowerportion of said frame, and also by means of the plate 29, connecting theupper portions thereof, and provided with an aperture for the freepassage of a rope S. Within the frame A is arranged a second frame B,also consisting of two side plates held together by the pins 6, b b andb and eccentrically arranged on the axles a, projecting from thecircular grooved block '0 of an inner frame 0. Said axles a have theirbearings in the side plates of the frame A. The inner frame 0 consistsof two side plates held together by the pins 0 0 c"; and c and isprovided at its forward end with a projection 0, adapted to engage thepin a of the frame A when in operative position. In the Patent No.583,776, dated June 1, 1897.

Serial No. 621,967. (No model.)

frame A is fulcrumed, as at a a hook 72, engaging one end of the spiralspring F, the other end of which is in engagement with a hook h,fulcrumed, as at b, to and within the frame B. On the pin 19 of frame Bis fulcrumed a lever 1), secured to one end of the spiral spring f, theother end of which engages the pin 19 or a curved grooved friction-blockarranged on said pin. The lower end of said lever 'u is in engagementwith the pin 0 of the frame C, while its upper end engages the rope S,as clearly shown in Fig. 1. On the pin 0 of frame 0 is arranged agrooved pulley, which in turn carries the rope 8, adapted to be securedto a person either by means of a belt or in any well-known manner. Oneof the side plates, constituting the'frame A, is provided at its upperright-hand corner with an opening 0, adapted to be engaged by a fingerof the person using the fire-escape, as hereinafter described. The pinsa, 6 and 0 may be provided with curved grooved friction-blocks, as willbe manifest. In operation the rope S is suspended from any convenientplace and the rope s secured to the person intending to use thefire-escape. The latter is first adjusted at a suitable place on therope S, which adjustment is easily accomplished by inserting one fingerin the opening 0 and by engaging with the other part of the hand theproj ecting end of the frame C and by moving said frames toward eachother, whereby the lever 12, against the action of the spiral spring f,disengages the rope S, and thus allows a free movement of the fireescape on the said rope. After proper adjustment the frames A and O arereleased and the lever n is returned to its normal position by means ofthe spiral spring f and engages again the rope S. The person now allowshis weight to act upon the rope .9, whereby the frame 0 is swungdownward on its fulcrum or until the projection 0 engages the pin aThis'position is illustrated in Fig. 2. The rope, which heretofore wasperfectly straight, is now looped, as at S, which loop is caused by thepin 0 being brought between the pins or and c. The frame B, by means ofits eccentric connection I), is also operated and brought into theposition as illustrated in said Fig. 2. The spiral springF is opened andthe said frames B and A are under tension of said spring F. Thefire-escape is thus securely held on the rope S, but by simply pullingthe frame A, engaging the opening 0, the friction is reduced and thefire-escape allowed to slowly descend on the said rope, as will bemanifest.

' Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a fire-escape, the combination with an outer frame, of an innerframe pivotally connected with said outer frame, a frame intermediatesaid outer and inner frames, the intermediate and inner frameseccentrically arranged on the pivotal connection, a spiral springconnecting the outer and the intermediate frames, and a series of pinsarranged in each of said frames and adapted to form a passage for themain rope, all said parts being so arranged, that when the inner frameis operated, the said series of pins are brought into frictional contactwith the main rope, substantially as described.

2. I11 a fire-escape, the combination with an outer frame, of an innerframe pivotally conneoted with said outer frame, a frame intermediatesaid outer and inner frames, the intermediate and inner frameseccentrically arranged on the pivotal connection, a spiral springconnecting the outer and the intermediate frames, a series of pinsarranged in each of said frames, and a spring-controlled lever pivotallysecured within the intermediate frame and in engagement with the mainrope and adapted to be controlled by the inner frame, all said partsbeing so arranged that when the inner frame is swung upward the saidlever disengages the rope, and when swung downward the series of pinsare brought into frictional contact with the said main rope,substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this15th day of January, 1897.

ZDZISLAW SZPOR.

lVitnesses HARRY BELMONT, KARL RooH.

